golang-samber-hot

In-memory caching in Golang can be implemented using the samber/hot library to handle resource loading with frequency-based eviction algorithms and TTL management. It provides read-through caching via loaders to efficiently reduce database load.

The samber/hot library offers 9 different eviction algorithms for in-memory caching, including LRU, LFU, and TinyLFU. These algorithms accommodate varying access patterns to optimize cache hit rates for medium-to-low cardinality resources.

Read-through caching handles cache misses in Golang by using a loader pattern with singleflight deduplication. This mechanism prevents multiple goroutines from simultaneously fetching the same missing resource, reducing redundant database queries.

Yes, you can set a Time To Live (TTL) for cache entries in a Golang application. The samber/hot library allows developers to configure TTL management to automatically expire stale cache entries.

Frequency-based eviction algorithms like TinyLFU should be used over LRU when your Golang application exhibits access patterns favoring frequently accessed items rather than recently accessed ones, optimizing medium-to-low cardinality resource loading.

No external dependencies are required beyond the library itself. You can install samber/hot directly via the go get command to start implementing in-memory caching, TTL management, and read-through loaders in your Golang application.